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Bonanza Mine

Past Producer in Douglas county in Oregon, United States with commodity Mercury
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10040416
MRDS ID M055187
Record type Site
Current site name Bonanza Mine
Alternate or previous names Bonanza
Related records 10200996

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -123.18451, 43.39401 (WGS84)
Elevation 366
Location accuracy 10(meters)
Relative position 8 MILES E OF SUTHERLIN. Location from GNIS and 24k topo.

Site location context

Political divisions (FIPS codes)

Douglas(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nonpareil(quadrangle 1:24,000 scale)

Roseburg(quadrangle 1:100,000 scale)

Roseburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Umpqua(hydrologic unit)

Southern Oregon Coastal(hydrologic accounting unit)

Oregon-Washington Coastal(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Oregon Douglas

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 025S 004W 16 SW Oregon

Comments on the location information

  • SW/4 SEC 16

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Mercury Ore
Metacinnabar Ore
Calcite Gangue
Chalcedony Gangue
Marcasite Gangue
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Silica, Carbonate And Clay Alteration And Impregnation Of Host Rocks

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Umpqua;Umpqua;Umpqua
    Rock description Umpqua;Umpqua;Umpqua

Nearby scientific data

Main Entrance (1) -123.18451, 43.39401
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ore Zone Is On The East Flank Of A Broad Anticline Striking N 25 E And Dipping 45 Se
Type of structure Local
Structure description Sandstone-Shale Contact

Ore body information

  • General form IRREGULAR LENSES
    Strike N 20 E
    Dip 45 SE
    Thickness 18.29M
    Length 914.4M
    Width 487.68M

Controls for ore emplacement

  • Bedding Plane Shear Zone In Sandstone. Ore Zone In Upper Levels Of The Mine Is Capped By Shale Unit

Comments on the geologic information

  • GEOL.DESC: UMPQUA FM SEDS, TUFFS, BASALTS DIP SE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1868
Year of first production 1937
Year of last production 1960
Production years 1887 , 1937 - 1949 , 1951 - 1960

Mining district

District name Bonanza Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Bonanza Oil And Mines Corp.
  • Type Owner
    Owner Clifford Bryden
    Year 1978

Production statistics

  • Year 1963
    Period To 1963
    Material HG
    Accuracy Accurate
    Description Cp_Grade: ^7 - 8 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 3388g/mt

Comments on the production information

  • POTENTIAL RESOURCES ARE MAINLY IN DEEPER LEVELS OF MINE

Comments on the reserve resource information

  • H. C. BROOKS, ODGMI, FILES

Workings at the site

  • Type of workings Unknown
    Length 6096M
    Overall depth 274.32M
    Overall length 975.36M
    Overall width 365.76M

Comments on the workings information

  • WORKINGS EXTEND FROM SURFACE TO INCLINED DEPTH OF 1600 FT. LEVELS ARE SPACEDFROM 70 TO 130 FT APART. POTENTIAL RESOURCES ARE MAINLY IN DEEPER LEVELS OF MINE.

Comments on development

  • EXPLORATION UNDER DMEA LOAN CONTRACT IN 1953-1958

Reference information

Bibliographic references

  • Deposit

    SCHUTTE, C. N., 1938, QUICKSILVER IN OREGON: ODGMI BULL. 4, P. 130-137

  • Deposit

    BAILEY, E. H., USGS, PERSONAL FILES.

  • Deposit

    BROOKS, H. C., 1963 , QUICKSILVER IN OREGON: ODGMI, BULL. 55 , 223 P.

  • Deposit

    BROWN, R. E. AND WATERS, A. C., 1951 , QUICKSILVER DEPOSITS OF THE BONANZA - NONPAREIL DISTRICT, DOUGLAS COUNTY, OREGON: USGS BULL. 955 - F.

  • Production

    BROOKS

  • Deposit

    U.S. GEOLOGICAL SURVEY BULLETIN 850, 1934, P. 40-41.

General comments

Subject category Comment text
Deposit Discovery Year: 1865 - 187
Deposit ORE LENSES RANGED FROM 3 TO 60 FT IN MAX. THICKNESS
Deposit RECORD ( W017070 ) MERGED WITH THIS RECORD AND DELETED FROM OREGON FILE.
Deposit From deleted record 10200996:
Orebody Information:
Length: 812 M Width: 442 M Depth to Top: 160 M Thickness: 1.5 M
Strike: N35E Dip: 45S
MAS Matrix # : 1
MAS Column # : 1
Type of Orebody #1 : SHEAR ZONE
Shape of Orebody #1 : TABULAR
Type of Orebody #2 : BRECCIA FILL
Type of Orebody #3 : REPLACEMENT
Primary mode of Origin : HYDROTHERMAL
Primary Ore Control : FAULTING
Secondary Ore Control : CONTACT ZONE
Degree of Wallrock Alter. : SLIGHT
Type of Wallrock Alter. #1 : ADV ARGILLIC
Type of Wallrock Alter. #2 : SILICIFICATION
Type of Wallrock Alter. #3 : CARBONITIZATION
Strike And Dip : N35E:45S
Minimum Depth to Top : 0
Avg. Thick. Unconsol. Mat. : 0
Min. Thick. Unconsol. Mat. : 0
Date of Last Modification : 830316
Area: 20 HA
Total Surface Area (HA) : 20
Date of Last Modification : 910418

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-73 Bergquist, Joel R. U.S. Geological Survey
Updater 01-MAR-81 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-93 Gray, Jerry J. Oregon Department of Geology and Mineral Industries
Reporter 03-AUG-92 Western Field Operations Center (WFOC) U.S. Bureau of Mines MAS 0410190019 = newMRDS 10200996.
Editor 23-NOV-10 Wilson, Anna B. U.S. Geological Survey merged and deleted duplicate record 10200996.

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site